package com.huan.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.huan.reggie.common.R;
import com.huan.reggie.pojo.Employee;
import com.huan.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){

        //1.对密码进行加密
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2.查询数据库
        LambdaQueryWrapper<Employee> employeeLambdaQueryWrapper = new LambdaQueryWrapper<>();
        employeeLambdaQueryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(employeeLambdaQueryWrapper);

        if (emp==null){
            return R.error("用户名不存在");
        }

        if (!emp.getPassword().equals(password)){
            return R.error("密码错误");
        }

        if (emp.getStatus()==0){
            return R.error("账号已被禁用");
        }

        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);

    }

    /**
     * 退出登录
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){

        request.getSession().removeAttribute("employee");
        return R.success("退出成功");

    }

    /**
     * 新增员工
     * @param request
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee){
        log.info("新增员工 {}",employee.toString());

        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));


        //employee.setCreateTime(LocalDateTime.now());
        //employee.setUpdateTime(LocalDateTime.now());

        //Long empId = (Long) request.getSession().getAttribute("employee");

        //employee.setCreateUser(empId);
       //employee.setUpdateUser(empId);

        employeeService.save(employee);

        return R.success("新增员工成功");

    }

    /**
     * 员工信息分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        log.info("page = {},pageSize = {},name = {}" ,page,pageSize,name);

        Page pageInfo = new Page(page,pageSize);

        LambdaQueryWrapper<Employee> lambdaQueryWrapper = new LambdaQueryWrapper<>();

        lambdaQueryWrapper.like(name!=null,Employee::getName,name);

        lambdaQueryWrapper.orderByDesc(Employee::getUpdateTime);

        employeeService.page(pageInfo,lambdaQueryWrapper);

        return R.success(pageInfo);
    }

    /**
     * 修改员工信息
     * @param request
     * @param employee
     * @return
     */
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        log.info(employee.toString());

        //Long empId = (Long) request.getSession().getAttribute("employee");

        //employee.setUpdateTime(LocalDateTime.now());
        ///employee.setUpdateUser(empId);

        employeeService.updateById(employee);

        return R.success("员工信息修改成功");
    }

    /**
     * 根据id查询员工
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("浏览器传过来的id {}",id);

        Employee employee = employeeService.getById(id);

        if (employee!=null){
            return R.success(employee);
        }

        return R.error("没有要查询的对应的员工信息");

    }

}
